vue基础之事件v-onclick="函数"用法示例

本文实例讲述了vue基础之事件v-onclick=函数用法。分享给大家供大家参考，具体如下：

v-on:click/mouseout/mouseover/dblclick/mousedown.....

事件:

v-on:click="函数"
v-on:click/mouseout/mouseover/dblclick/mousedown.....

new Vue({
  el:'#box',
  data:{ //数据
    arr:['apple','banana','orange','pear'],
    json:{a:'apple',b:'banana',c:'orange'}
  },
  methods:{
    show:function(){  //方法，这里是show，不能用alert
      alert(1);
    }
  }
});

实例：为data添加数据

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>www.jb51.net 为data添加数据</title>
  <style>
  </style>
  <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script>
  <script>
    window.onload=function(){
      new Vue({
        el:'#box',
        data:{ //数据
          arr:['apple','banana','orange','pear'],
          json:{a:'apple',b:'banana',c:'orange'}
        },
        methods:{
          add:function(){
            this.arr.push('tomato');//this指代new Vue()，也是data
          }
        }
      });
    };
  </script>
</head>
<body>
  <div id="box">
    <input type="button" value="按钮" v-on:dblclick="add()">
    <br>
    <ul>
      <li v-for="value in arr">
        {{value}}
      </li>
    </ul>
  </div>
</body>
</html>

运行效果：

实例：点击按钮，div显示/消失，切换。v-show="a"

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>www.jb51.net 点击按钮，div显示/消失，切换。v-show="a"</title>
  <style>
  </style>
  <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script>
  <script>
    window.onload=function(){
      new Vue({
        el:'#box',
        data:{ //数据
          a:true
        },
        methods:{
          adjust:function(){
            console.log(this.a);
            if(this.a == true){
              this.a = false;
            }else{
              this.a = true;
            }
          }
        }
      });
    };
  </script>
</head>
<body>
  <div id="box">
    <input type="button" value="按钮" v-on:click="adjust()">
    <div style="width:100px; height:100px; background: red" v-show="a">
    </div>
  </div>
</body>
</html>

实例：vue简易留言本

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>www.jb51.net vue简易留言本</title>
  <style>
  </style>
  <link rel="stylesheet" href="https://cdn.bootcss.com/twitter-bootstrap/2.3.2/css/bootstrap.min.css" rel="external nofollow" >
  <script src="http://libs.baidu.com/jquery/1.7.2/jquery.min.js"></script>
  <script src="https://cdn.bootcss.com/twitter-bootstrap/2.3.2/js/bootstrap.js"></script>
  <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script>
  <script>
    window.onload=function(){
      new Vue({
        el:'#box',
        data:{
          myData:[],
          username:'',
          name:'',
          age:'',
          nowIndex:-100
        },
        methods:{
          add:function(){
            this.myData.push({
              name:this.username,
              age:this.age
            });
            this.username='';
            this.age='';
          },
          deleteMsg:function(n){
            if(n==-2){
              this.myData=[];
            }else{
              this.myData.splice(n,1);
            }
          }
        }
      });
    };
  </script>
</head>
<body>
  <div class="container" id="box">
    <form role="form">
      <div class="form-group">
        <label for="username">用户名:</label>
        <input type="text" id="username" class="form-control" placeholder="输入用户名" v-model="username">
      </div>
      <div class="form-group">
        <label for="age">年　龄:</label>
        <input type="text" id="age" class="form-control" placeholder="输入年龄" v-model="age">
      </div>
      <div class="form-group">
        <input type="button" value="添加" class="btn btn-primary" v-on:click="add()">
        <input type="reset" value="重置" class="btn btn-danger">
      </div>
    </form>
    <hr>
    <table class="table table-bordered table-hover">
      <caption class="h3 text-info">用户信息表</caption>
      <tr class="text-danger">
        <th class="text-center">序号</th>
        <th class="text-center">名字</th>
        <th class="text-center">年龄</th>
        <th class="text-center">操作</th>
      </tr>
      <tr class="text-center" v-for="(item,index) in myData">
        <td>{{index+1}}</td>
        <td>{{item.name}}</td>
        <td>{{item.age}}</td>
        <td>
          <button class="btn btn-primary btn-sm" data-toggle="modal" data-target="#layer" v-on:click="nowIndex=$index">删除</button>
        </td>
      </tr>
      <tr v-show="myData.length!=0">
        <td colspan="4" class="text-right">
          <button class="btn btn-danger btn-sm" v-on:click="nowIndex=-2" data-toggle="modal" data-target="#layer" >删除全部</button>
        </td>
      </tr>
      <tr v-show="myData.length==0">
        <td colspan="4" class="text-center text-muted">
          <p>暂无数据....</p>
        </td>
      </tr>
    </table>
    <!--模态框 弹出框-->
    <div role="dialog" class="modal fade bs-example-modal-sm" id="layer">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal">
              <span>×</span>
            </button>
            <h4 class="modal-title">确认删除么?</h4>
          </div>
          <div class="modal-body text-right">
            <button data-dismiss="modal" class="btn btn-primary btn-sm">取消</button>
            <button data-dismiss="modal" class="btn btn-danger btn-sm" v-on:click="deleteMsg(nowIndex)">确认</button>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>
</html>

运行效果：

感兴趣的朋友可以使用在线HTML/CSS/JavaScript代码运行工具：http://tools.jb51.net/code/HtmlJsRun测试上述代码运行效果。

希望本文所述对大家vue.js程序设计有所帮助。